Hoisting-gear



J. L. BOOTH.

HOISTING GEAR.

No. 295,725. Patented Mar. 25, 1884.

i I UNITED STATES To all whom it may concern.-

Be it known that LJOHN L. BOOTH, (also commonly known asJoHN W. 13001111,) a citizen of Great Britain, and a resident of Ham 5 ilton, Butler county, Ohio, have invented certain new and useful Improvements in Hoisting-Gear, of which the following is a specification.

and it'relates particularly to the arrangement of a device for permitting a ready change in the speed andpower of the transmission.

the following description, taken in connection Figure 1 is an end elevation of a hoisting- 2o 5, and 6 diagramsillustrating modifications.

housings of a hoisting-crab; B, the reel-shaft;

arranged to operate as usual; E, an internal gear formed upon the reel-flange; F, an external gear formed upon the reel-flange concentric with the internal gear, and provided with teeth of similar pitch; G, a pinion adapt ed to gear into either of the gears upon the reel-flange; H, the motor-shaft of. said pinion, (shown inthis case as being provided with a square for a hand-crank I, an oscillating le- The lever I may be oscillated so as to bring the pinion G into mesh with either of the gears upon the reel-flange in a manner which which of the gears the pinion meshes with;

It is obvious that the device'as thus far specified will requirethat the motor-shaft H have its motion reversed in order to maintain the proper direction of motion of the reel when the pinion is thrown from one gear to the other. For ordinary hand-crank hoisting ap- This invention pertains to gearing for trans: mitting motion from the motor shaft of a hoisting apparatus to the reel upon thesame,

with the accompanying drawings, in whichj crab embodying my improvement; Fig. 2, a. vertical section of the same, and Figs. 3, 4,

In the drawings, A represents one of the 0, one of the reel-flanges; D; the brake-lever,

ver, in which the shaft H is journaled; and J, a pivot for said lever, supported by the houswill ode clearly understood from the drawings, whereby motion may be transmitted to the reel at two different speeds, dependent upon PATENT OFFICE.

JOHN L. BOOTH, or HAMILTON, onio.

HOlSTlNG-GEAR.

SPECIFICATION forming part of Letters Patent No. 295,725, dated March 2 5. 1884.

Application filed January 10, 1884. (No model.)

paratus this may not be objectionable; but where objections to such reversal of motion exist the objections may be removed by the obvious use of an intermediate pinion, through which the pinion G may transmit its motion by which means motion of the pinion G in one direction may be utilized to transmit motion to the reel at two different speeds always in l the same direction. The invention will be fully understood from.

I In Fig. 4 the idle-pinion, instead of simply receiving the pinion G, is journaled to the lever so as to move with the pinion G, the effect being the same as with the device shown in Fig. 3. s

In Fig. 5 the pinion G acts the same as in the device of Fig.1; but the motor-shaft H, instead of driving that pinion directly, is'lo cated in the axis of oscillation of the lever, and drives that pinion through the instrumentality of the pinion upon the motor-shaft. The object of this modification is simply to suit cases where the rise and fall of the motorshaft, in case it partakes of the motion of the pinion G/would be objectionable.

In Fig. 6 the center of the motor-shaft and the center of oscillation of the lever are so related to each other that the pivot I of the le I with said gears, a lever supporting said pinion and fitted to oscillate upon a pivot having its axis coincident with the aXis'of said gears,

.and a motor-shaft adapted to impart motion to said pinion, substantially as and for the purpose set forth.

J OHN 'L. BOOTH. Witnesses:

J. WISEE,

W. A. SEWARD. 

